Provider pricing
Zhipu AI AI API pricing
Zhipu AI (now operating as Z.ai) builds the GLM family of open-weight models. The latest GLM-5.2 is a 744B-parameter MIT-licensed flagship with a 1M-token context window — #1 open on Agent Arena, #1 on Design Arena, and #2 overall on Arena.ai Code Frontend — often matching Claude Opus 4.8 on coding and agentic work at $1.40 per million input tokens. Earlier GLM-4.6 remains a competitive lower-cost option. Models are available via Z.ai / bigmodel.cn and mirrored on OpenRouter, Together, and Fireworks.
Founded2019
HeadquartersBeijing, China
Tracked models7
Best for
Cost-sensitive teams that want frontier-grade open-weight Chinese models.
Strengths
- GLM-5.2: 744B params, 1M context, MIT license — #1 open coding & agent model
- Open weights for self-hosting; permissive licensing across the GLM line
- Strong agentic + coding performance with built-in function calling
- Aggressive pricing — GLM-5.2 starts at $1.40/M input tokens
Tracked Zhipu AI models
| Model | Input $/M | Output $/M | Context | Tier | Best for |
|---|---|---|---|---|---|
| GLM-4.6 | $0.600 | $2.20 | 200,000 | Flagship | Zhipu flagship reasoning and coding model |
| GLM-4.5 Air | $0.200 | $1.10 | 128,000 | Mid-tier | Lightweight MoE for cost-sensitive agentic workloads |
| GLM-4.5 Flash | $0.050 | $0.200 | 128,000 | Budget | High-volume classification and retrieval |
| GLM-4-Plus | $0.700 | $2.10 | 128,000 | Flagship | Premium GLM variant for complex reasoning and tool use |
| GLM-Z1 | $0.500 | $2.00 | 128,000 | Reasoning | Reasoning-tuned GLM with extended chain-of-thought |
| GLM-5.2 | $1.40 | $4.20 | 1,000,000 | Flagship | Z.ai 744B open flagship — #1 open on coding & agent benchmarks, MIT license, 1M context |
| GLM-5 | $0.800 | $3.00 | 256,000 | Flagship | Next-gen GLM flagship for reasoning, coding, and tool use |